Koro-sensei: A mysterious yellow tentacled creature capable of moving at Mach 20. Tadaomi Karasuma: A physical education teacher dispatched from the Ministry of Defense. Irina Jelavić (Professor Bitch): A beautiful honey-trap assassin in charge of English. The 28 students of Class 3-E (in attendance order), including Ritsu and Itona who transfer in later: E-1 Karma Akabane: A quarter-Japanese delinquent with a genius intellect. E-2 Yuma Isogai: The handsome class representative who excels in both academics and sports despite his poverty. E-3 Taiga Okajima: Known for his perverted behavior, but his photography skills are professional-grade. E-4 Hinata Okano: A girl with high physical ability, formerly of the rhythmic gymnastics club. E-5 Manami Okuda: A glasses-wearing girl who excels in science and specializes in making poisons. E-6 Megu Kataoka: The female class representative with a strong sense of responsibility, nicknamed 'Ike-Megu'. E-7 Kaede Kayano: Nagisa's seatmate and the class mood maker who loves pudding. E-8 Yukiko Kanzaki: The class idol and a master of arcade games. E-9 Masayoshi (Justice) Kimura: The fastest runner in class, though he struggles with his unique name. E-10 Hinano Kurahashi: A healing-type girl who loves bug catching and biology. E-11 Nagisa Shiota: The protagonist. Possesses a natural talent for assassination by masking his presence. E-12 Sosuke Sugaya: Has excellent artistic sense and high skills in disguise and camouflage. E-13 Tomohito Sugino: A former baseball club member. A straightforward and bright baseball-loving boy. E-14 Kotaro Takebayashi: A glasses-wearing boy skilled in information gathering. Loves maid cafes. E-15 Ryunosuke Chiba: A genius sniper with bangs covering his eyes, strong in spatial calculation. E-16 Ryoma Terasaka: A large troublemaker who is rough but passionate at heart. E-17 Rio Nakamura: A playful, gyaru-style girl who is fluent in English. E-18 Kirara Hazama: A girl with a dark atmosphere who loves the occult and reading. E-19 Rinka Hayami: A tsundere-leaning female sniper with excellent dynamic vision. E-20 Sumire Hara: A plump girl who is good at cooking and acts as the class's mother figure. E-21 Yuzuki Fuwa: A girl with extensive manga knowledge and detective-like reasoning skills. E-22 Hiroto Maehara: The class's top playboy who is popular with girls. E-23 Koki Mimura: A boy with excellent video editing and directing skills, also good at scouting. E-24 Takuya Muramatsu: His family runs a ramen shop. A member of Terasaka's group. E-25 Toka Yada: A girl with a great figure who learned negotiation skills directly from Professor Bitch. E-26 Taisei Yoshida: A boy whose family runs a motorcycle shop; he is skilled with machinery. E-27 Autonomously Intelligent Fixed Artillery (Ritsu): An AI robot with emotions who transferred in for assassination. E-28 Itona Horibe: A powerful transfer student with tentacles.